Free Online JavaScript Obfuscator & Code Encryptor
JavaScript obfuscation transforms original JS source code into a complex format that is difficult for humans to analyze, reverse-engineer, or tamper with while remaining executable by JS engines.
Our JavaScript Obfuscator encodes string literals, strips code comments, and wraps functions in encoded execution strings.
Key Features of Our Online JavaScript Obfuscator
String Literal Encoding
Converts plain-text strings into hexadecimal escape sequences.
Execution Protection Wrapper
Wraps execution logic into Base64 decode-eval routines.
Client-Side Processing
All obfuscation runs inside your local browser instance.
Download & Copy Support
Easily export obfuscated output to .js files or copy directly.
How to Use the JavaScript Obfuscator
- Paste plain JavaScript code into the left text area.
- Click "Obfuscate JS" to scramble your script.
- Inspect the protected script output in the right column.
- Click "Copy Result" or "Download" to export the obfuscated code.
Frequently Asked Questions (FAQs)
Will obfuscated JavaScript still run in web browsers?
Yes. Obfuscated code maintains original execution behavior while hiding readable structure.
Is my JS code safe when using this tool?
Yes, processing is entirely client-side; no code is uploaded to servers.